The findings represent "a reversal of fortune for the national Democratic front-runner who had led against all prospective GOP opponents earlier this year," Zogby said.

Democratic Sen. Barack Obama and John Edwards fare better, though, either tying or beating the Republican top five.

To put this all in perspective, though: Real Clear Politics, an online clearinghouse of all things 2008-related, keeps track of all the top polls and has Hillary beating Giuliani, McCain, Romney and Thompson by an average of 2 to 10 points. So take Zogby with a grain of salt.

Zogby surveyed 9,150 likely voters and the poll has a margin of error of plus or minus 1 percent.